#include<bits/stdc++.h>
#define int long long
using namespace std;
const int N=1000010;
const int mod=998244353;
typedef long long ll;
int n;
signed main(){
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	cin>>n;
	int c=__builtin_popcountll(n);
	cout<<n+1-(1ll<<c)<<"\n";
	return 0;
}
/*

*/